fixup r17372: commit correct file to enable alpha on windows with GTK3

git-svn-id: https://xpra.org/svn/Xpra/trunk@17373 3bb7dfac-3a0b-4e04-842a-767bc560f471

src/xpra/client/gtk3/client_window.py

@@ -91,7 +91,7 @@ def enable_alpha(self):
         if visual is None or not screen.is_composited():
             log.error("enable_alpha() cannot handle window transparency on screen %s", screen)
             return False
-        log.info("enable_alpha() using rgba visual %s for wid %s", visual, self._id)
+        log("enable_alpha() using rgba visual %s for wid %s", visual, self._id)
         self.set_visual(visual)
         return True
 

src/xpra/client/gtk_base/gtk_window_backing_base.py

@@ -5,9 +5,8 @@
 # later version. See the file COPYING for details.
 
 from xpra.util import envbool
-from xpra.os_util import WIN32
+from xpra.os_util import WIN32, PYTHON3
 
-#transparency with GTK is not supported on MS Windows
-#(it may work with GTK3?)
-DEFAULT_HAS_ALPHA = not WIN32
+#transparency with GTK is not supported on MS Windows with PYGTK:
+DEFAULT_HAS_ALPHA = not WIN32 or PYTHON3
 GTK_ALPHA_SUPPORTED = envbool("XPRA_ALPHA", DEFAULT_HAS_ALPHA)